Tripper or deliverer for conveying apparatus.



No. 758,875. PATENTED MAY 3, 1904. P. E. TIGKNOR & C. K. BALDWIN.TRIPPER 0R DBLIVERBB. FOR CONVEYING APPARATUS.

APPLICATION FILED JULY 25, 1903.

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No. 758,875. PATEN'IED MAY 3, 1904. P. E. TIGKNOR & 0. K. BALDWIN.TRIPPBR 0R DELIVERER FOR CONVEYING APPARATUS.

APPLIOATION IILED JULY 26, 1903.

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NITED STATES Patented May 3, 1904.

PATENT OFFICE.

BALDlVIN, OF NEW YORK, BELT COMPANY, OF NEW YORK, N. Y., A CORPORATIONOF NEW JERSEY.

TRIPPER OR DELIVERER FOR CONVEYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 758,875, dated May 3,1904.

Application filed July 25,1903. Serial No. 167,029. (No model.)

To (/6 [Ix/mm, it THU/Z] concern:

Be it known that we, FRANK E. TIGKNOR and CLARENCE KEMBLE BALDWIN,citizens of the United States, and residents of the borough ofManhattan, city, county, and State of New York, have invented certainnew and useful Improvements in Trippers or Deliverers for ConveyingApparatus, of which the following is a specification accompanied by IOdrawings.

This invention relates to conveying-belt apparatus, but moreparticularly to the tripper or deliverer for such apparatus; and itsobjects are to improve upon the construction of trippers forconveying-belts, secure greater certainty and efficiency of operation,enable the tripper to be given a reciprocating travel by means actuatedfrom a single pulley constantly rotating in a given direction, secure 2greater traction, and afford a lock for the tripper, so that it cannotbe pulled along by the belt.

Further objects of the invention will hereinafter appear; and to theseends the invention consists of apparatus for carrying out the aboveobjects embodying the features of construction, combinations ofelements, and arrangement of parts having the general mode of operationsubstantially as hereinafter fully 3 described and claimed in thisspecification, and shown in the accompanying drawings, in which Figure 1is a side elevation of apparatus embodying the invention. Fig. 2 is anend elevation of the same with the hopper removed and the frame partlybroken away. Fig. 3 is a plan view of the apparatus, partly broken away.Fig. 4: is a detail view of a modified form of the clutch mechanism.

Referring to the drawings, A represents a suitable frame adapted totravel back and forth upon a track B in any suitable manner, in thisinstance the frame A being shown provided with wheels C upon the axlesD, suitably journaled in the frame. The conveyer-belt E (a portion onlyof which is shown) passes over the idler-milleys F and Cr, provided withaxles suitably ournaled in the frame A, and, as shown, the belt forms anogee curve, like the letter S, in passing over the pulleys F and (i, thematerial on the belt falling off as it passes around the pulley F andbeing delivered in the chute H, which catches the material and deliversit clear of the belt. A tripper has been described which is adapted totravel back and forth upon the tracks B, and suitable means are providedfor automatically giving travel to the tripperand causing it to reverseits direction of travel at certain predetermined times.

According to this invention means are providcd for giving travel to thetripper connected to be actuated by one of the idler-pulleys over whichthe belt passes. The pulleys F and (1 are constantly rotating in a givendirection, the belt moving in the direction of the arrow, and the meansfor actuating the driving mechanism of the tripper is connected to beoperated by one of the constantly-rotating idler-pulleys, and themechanism is such that a reciprocating travel is given to the tripper inopposite directions from the one pulley constantly rotating in the samedirection.

Many different ways will be found and many different kinds of mechanismwill be devised for accomplishing the ends in view; but a suitable andeflicient mechanism has been shown which has been found to operatesatisfactorily for carrying out the above objects.

According to the construction shown the power for imparting travel tothe tripper is derived from the lower belt-pulley Cr, and in thisinstance the shaft K of said pulley is provided with a bevel-gear 53.\Vorm gearwheels 50 are mounted upon each of the axles D of the wheelsC, and two worms 51 on a single shaft 59. mesh with the worm-wheels 50.As stated, the bevel-gear 53 is'connected to the lower tripper-pulley(1, being keyed to the shaft K of said pulley, and thereby rotated in aconstant direction. Reversed rotation is given to the worm-shaft 52 bymeans of two bevel-gears 5e, loose upon the shaft and meshing with thegear Cast on each bevel-gear Si is one-half of ajaw-clutch, while theother members 56 of the clutches slide on keys on the shaft 52, andmeans are provided end of the trip-lever engages a pin 7 5 on the Weight61.

The reversing or trip lever 60, pivoted to the frame, is adapted to bethrown in one direction or the other by the stops 0 and (Z. Thereversing-lever 60 is connected, as shown, to rock the weight 61 andbell-crank lever 59 to actuate the clutches. The operative connectionsbetween the driving mechanism and the reversing-lever 60 are such thatwhen the arm or leveris moved automatically it may acquire a certainmomentum before actingv to reverse the driving connections, as shown,there being a lost-motion connectionslot 71 and a weight 61 for the arm,which weight acts automatically when displaced beyond its center ofgravity. According to the arrangement described it will be seen thatwhen one of the stops, 0, is struck by the lower end of the lever 60saidlever may rock for a limited distance determined by the length ofthe slot 71 in the rod 58, while at the same time the weight 61 is movedto a central position or slightly beyond its center of gravity, ifdesired, without disengaging the driving connections. It will thus beseen that the weight 61 and lever 60 will acquire a certainmomentumbefore acting, which increases the certainty of operation andinsures the reversing of the driving connections in the requireddirection. One of the stops, as 0, may be adjusted longitudinally of thetrack B, to which in this instance it is connected, so that the lengthvof travel of the tripper may be varied as desired.

In Fig.4 another equivalent form of clutch is shown, in which the outerclutch members 62 are provided with bevel-gears 63, meshing with thegear 53, while the central clutch member 64 is movable longitudinally ofthe shaft 52.

The advantagesof this tripper are that by using wormgears provision isafforded for driving both pairs of wheels C, thus giving additionaltraction. Furthermore, by the use of the worm and wheel in the driving alooking mechanism is provided, so that the tripper cannot be pulledalong by the belt, for the worm-wheel cannot drive the worm.

In order to afford provision for centering the clutch mechanism so thatthe tripper will not be actuated in either direction, any suitable meansmay be provided, in this instance a forked arm being connected to therod 58, and an operating-rod. 81 extends transversely of the frame of'thetripper and is suitably pivoted thereon in "the'brackets 82. The rod81 is provided with an arm 83, having a stop-pin 8 1 thereon, andhandles 85 are provided for rotating the rod 81. According to thisconstruction the stop-pin 8 f cooperates with the forked end of the arm80. With the parts in the position shown in Fig. 1 one of the slidableclutch members is in engagement with its cooperating clutch member. Whenthe stop-pin 84: is moveddownwardly into the forked end of the arm 80,the clutch member 56 now shown in engagement with its cooperating memberis slid along the shaft 52 out of engagement, and the rod 58 ismaintained in such a position that neither clutch member 56 is inoperative position, and the tripper remains stationary.

Obviously some features of this invention may be used without others,and the invention may be embodied in widely-varying forms.

Therefore, without limiting the invention to the construction shown anddescribed nor enumerating equivalents, we claim, and desire to secure byLetters Patent, the following:

1. In a tripper or deliverer for conveyers, the combination with theframe and wheels, of a continuous traveling conveyer-belt and aplurality of pulleys for the belt, a worm-shaft connected to drive thewheels of the tripper, and clutch mechanism interposed between one ofthe idler-pulleys and said shaft, for driving said shaft in eitherdirection, for substantially the purposes set forth.

2. In a tripper or deliverer for conveyers, the combination with theframe and wheels, of a continuous traveling conveyer-belt and aplurality of pulleys for the belt, a worm-shaft connected to drive theWheels of the tripper, clutch mechanism interposed between one of theidler-pulleys and said shaft, for driving said shaft in eitherdirection, and means for automatically operating said clutch mechanism,to reverse the direction of rotation of the worm-shaft, forsubstantially the purposes set forth.

3. In a tripper or deliverer for conveyers, the combination with theframe and continuous traveling conveyer-belt, of a plurality ofidler-pulleys around which the belt runs and over which the material isdelivered from the belt, one or more driving-wheels, worm-gearing foractuating said wheel or wheels, and clutch mechanism connected to impartpower to said gearing from one of the belt-pulleys, for driving saidwheel or wheels in either direction, for substantially the purposes setforth.

4. In a tripper or deliverer for conveyers, the combination with theframe and continuous traveling conveyer-belt, of a plurality ofidler-pulleys around which the belt runs and over one of which thematerial is delivered from the belt, one or more driving-wheels, wormwheels connected to said driving wheels, a shaft and worm-gears thereonmeshspecification in the presence of two subscribing with saidWorm-Wheels, and clutch rncching witnesses.

anism interposed between one of the belt-pul- FRANK E. TICKXOR. leys andthe worm-shaft, for operating said CLARENCE KEMBLE BALDWIN. shaft inboth directions, for substantially the purposes set forth.

In testimony whereof We have signed this \Vitncsses:

F. T. \VAYNE, Roscon L. PETERSON.

